THEOSISJerome of Stridon
His sons will be called forth and will gather a multitude of warriors, and one of them will rush in and overflow with fervor. After returning, he will be filled with anger and will exert all his strength in battle. Following the defeat and demise of Seleucus Callinicus, his two sons, Seleucus, known as Keravnus, and Antiochus, referred to as the Great, driven by the hope of triumph and the wish to avenge their father, assembled an army and prepared to fight against Ptolemy Philopator. Yet, when Seleucus, the elder sibling, met his end in Phrygia during the third year of his reign due to the treachery of Nicanor and Apaturius, the troops in Syria called upon his brother Antiochus the Great to take the throne from Babylon.
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Thus, it is noted that the two sons were summoned and formed vast armies, and Antiochus the Great came from Babylon to Syria, which at that time was under the control of Ptolemy Philopator, son of Evergetes, the fourth ruler of Egypt. After confronting his leaders in battle, or rather, after seizing power due to the betrayal of Theodotius in Syria, which had once been held by the Egyptian kings in succession, he grew so audacious that, disregarding the decadence of Philopator and the sorcery in which he is said to have indulged, he resolved to wage war against the Egyptians.